So I've found today this game on Early Access on Steam called Avorion.

"Avorion is a sandbox multiplayer game where you find yourself in a sci-fi galaxy, far far away from the milky way. You can explore this galaxy, build your own space ships and stations and get to know other people who do the same.

You can mine asteroids to collect resources, which you will then use to build your own ships. There are other ways to gain credits, too: You can trade with other players (or AI) or destroy and loot ships controlled by other factions or pirates. Everything in the game is be made out of blocks of different sizes, this way it is easy to build your own space ships as you wish, and even generate them randomly for infinite possibilities! "

The planned features are really very very interesting as well such as, random scripted events, scripted server-wide events (invasion of unknown enemies from another galaxy, was their example given). But the game has a lot of potential and it's already in very positive reviews on Steam too.